Island



(No Model.) TURNER.

' SYRINGE.

No. 267,952. Patented Nov. 21, 1882.

N. PETERS, Phnm-Lirho n hnr. wamin tun. I1 04 although it contains UNITED STATES PATENT OFFICE.

WILLIAM A. TURNER, OF PROVIDENCE, RHODE ISLAND, ASSIGNOR TO 3 JOSEPHDAVOL, OF SAME PLACE.

SYRINGE.

SPECIFICATION forming part of Letters Patent No. 267,952, dated November 21, 1882.

Application filed August 18,1882. (No model.)

To all whom it may concern:

Re-it known that I, WILLIAM A. TURNER, of the city and county of Providence, in the State of Rhode Island, have invented certain new and useful Improvements in Syringes; and I do hereby declare that the following specification is a full, clear, and complete description of the several features of my invention.

My said improvements relate wholly to that particular class of bulb-syringes which have a rigid metallic foot-pipe connected thereto and embodying a screw-jointed metallic branch angularly projecting therefrom, to which a flexible discharge-tube is attached, duly provided with a discharge-nozzle of any desired form.

The objects of my invention are mainly to increase the efficiency and durability of this class of syringes, and to enable them to be produced at less cost than has, as I believe, been heretofore possible.

My said improvements involve a novel construction of the foot-pipe, and I employ therewith such valves as are in some form requisite for securing the results desired in the use of all bulb-syringes.

So far as myknowledge extends, all branched foot-pipes, as heretofore constructed, have been composed of at least two sections, one of which is a mere straight piece serving as the lower end of the foot-pipe and the other a branched section having a neck for the bulb,

and either a'screw-connection for a separate tube-neck or a simple neck to which the flexible tube is applied. ln accordance with my invention the foot-pipe is integral or jointless, both valves and suitable sea-ts therefor, and is provided with two necks for respectively connecting with the bulb and with the flexible tube.

To more particularly describe my invention, I will refer to the accompanying drawings, in which- Figure 1 is a side view of a complete syringe embodying my invention. Fig. 2 is a'longitudinal central section of the foot-pipe and its valves.

The compressible bulb A and discharge-tube a are, as heretofore. composed of flexible vulcanized rubber. The rigid foot-pipe Bis composed of metal, and, so far as my knowledge extends,- it is novel, in thatitisjointless, although provided with the branch I), the bulb-neck c, and

tube-neck d, the whole being composed of cast white-metal. The valve-seats e and fare integrally cast with the foot-pipe, at one pouring of the metal, in a mold devised by me for that purpose. The branch-valve seat f, although integral, is readily accessible for proper fin.- ishing operations by means of tools inserted by way of the tube-neck 0i, and the foot-valve scat e is also in like manner readily accessible by way of the bulb'neck c. The branch valve f at seat f is of the usual form employed in syringes of this class; but the foot-valve c has a stem which passes freely through a hole in a guide-bar, g, which is preferably also integral with the footpipe, although it may be separately secured therein, and in order that said valve may be prevented from accidental or undue displacement from its seat the lower end of the stem is slightly headed or otherwise prevented from sliding too far upward into the foot-pipe and out of the valve-seat. The enlarged base h of the foot-pipe is also preferably integral with the foot-pipe; but it may be separately cast and applied thereto without departure from my invention. The valve f may also be prevented from accidental or undue displacement and loss by inwardlybent portions of the outer edge of the neck in a manner heretofore practiced for that purpose in syringes having a separately-constructed branch section.

It will be seen that I wholly obviate the leakage incident to screw-joints, heretofore involved in providing accessible valve-chambers and'in uniting the branch section to the footsection, and that I attain greater durability as well as cheapness in construction by obviating said screw-joints. By locating my footvalve at the lower end of the foot-pipe and securing it as described it is obvious that said valve can be readily removed by clipping the end of the stem and another valve substituted,

if desired, and that the upper'or branch valve can be readily removed, as heretofore.

It will also be seen that'both of my valves are readily accessible for cleansing, the branch valve being in that respectas heretofore, while provided with a neck'for a bulb and a neckfor a flexible tube, substantially as described.

' 2. Theimproved syringe, substantially as described, consisting of the jointless rigid footpipe, the valves therein, the bulb, and the flexi- 15 ble discharge-tube.

WILLIAM A. TURNER.

Witnesses:

GEORGE J. WEST, CLEMENT KINSTLER. 

